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Prochazka, Tomas (2016): W-symmetry, topological vertex and afline Yangian. In: Journal of High Energy Physics, Nr. 10, 077 [PDF, 1MB]

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Abstract

We discuss the representation theory of the non-linear chiral algebra W1+infinity, of Gaberdiel and Gopakumar and its connection to the Yangian of <(u(1))over cap> whose presentation was given by Tsymbaliuk. The characters of completely degenerate representations of W1+infinity are given by the topological vertex. The Yangian picture provides an infinite number of commuting charges which can be explicitly diagonalized in W1+infinity highest weight representations. Many properties that are difficult to study in the W1+infinity picture turn out to have a simple combinatorial interpretation, once translated to the Yangian picture.

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